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  • Title: [Analysis of tumor specific immunological response in the patients with malignant brain tumors by the mixed lymphocyte-tumor cell reaction].
    Author: Yoshida S, Takai N, Ono K, Saito T, Tanaka R.
    Journal: No To Shinkei; 1988 Nov; 40(11):1067-73. PubMed ID: 2975495.
    Abstract:
    In considering immunological approaches to treatment of the patients with malignant brain tumors, it seems very important to enhance the tumor specific immunity. Then, to ascertain whether tumor specific immune response occurs in these patients with malignant brain tumors, lymphocyte blastogenetic responses to tumor cells were examined in 18 patients with malignant brain tumors. Furthermore, to compare the systemic immunological responses with the local responses in the brain tumor tissues, both peripheral blood lymphocyte (PBL) and tumor infiltrating lymphocyte (TIL) were used as blastogenetic stimulators to the tumor cells. The PBL from the patients with malignant gliomas showed any positive blastogenetic response to their own glioma cells in 7 or 12 cases (about 58%). But, TIL from these patients showed a positive response in the only 3 cases (25%). In 6 cases of metastatic brain tumors, otherwise, their PBL showed any positive blastogenetic response to their own tumor cells in 4 of 6 cases (about 67%), and their TIL showed any positive blastogenetic responses in these same 4 cases. So, the tumor specific immunological responses may be stronger in the patient with metastatic brain tumors than in the patient with malignant gliomas. These immunological responses were, furthermore, more weak in the brain tumor tissues than in the systemic immunity. Then, this lymphocyte blastogenetic response to tumor cells were compared with other lymphocyte stimulating examination such as rectine or allogenetic lymphocyte stimulation. Our studies revealed that this lymphocyte blastogenetic response to tumor cells were at lower level compared with rectine such as PHA, PWM, and Con A, or allogenetic lymphocyte stimulation.(ABSTRACT TRUNCATED AT 250 WORDS)
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